Oil reservoir for bearings



July 24, 1934. BQLLMER 1,967,705

OIL RESERVOIR FOR. BEARINGS Filed Feb. 4. 1952 I0 I 6 Inventor m; A. ULLMER 7 l5 l7 wg A tt'y.

Patented July 24, 1934 v 1,967,705 on nsssnvom FOR psmmos Andrew Bullmer, St. Louis, Mo., casino: to Wagner Electric (lorpontlon, St. Louis, Mo, a corporation of Delaware Apphcatlon February 4, 1932, Serial No. scores Claims.

My invention relates to oil reservoirs for shaft bearings in which the oil is conveyed to the shaft by some type of wick (such as yarn or waste), or by an oil ring.

- o In prior constructions known to me, no provision has been made for preventing the oil in the reservoir from leaking out between the hearing and the shaft when the machine of which ,it is a, part, is in s. position other than the norl mel one, as is often the case vslur-lug shipment.

In view of this, the usual procedure of the memutocturer has been to till the reservoir with oil during testing of the machine but to drain the oil before shipment. However, users often neglect to refill the reservoir and the principal object of my. invention is to so construct on oil reservoir that the oil will not lent: out in any position in which the machine may he placed enol thus permit shipment of the inechine with the proper supply of oil in the reservoir.

Other objects of my invention will become epparent from the following description taken in connection with the accompanying olrswing in which Figure 1- is on end view of on end plate r J dynemo electric machine embodying shott hearing bones and my improved oil reservoir therefor in their normal positions; Figure 2 is a cross sectional view on the line 2-2 of Fin ure 1; Figure 3 is o. topview of Figure l, portly in cross section, the cross section being on the line 3-3; Figure 4 is at cross sectional view on the line 4- of Figure 1; end Figure 5 is or cross secticnol view of the hearing bosses oncl the oil reservoir, showing the position the hotly of oil assumes when the shell; herring unis is vertical.

Referring to the drawing in detail, 21 inelicutes the end plate of s dynamo electric machine pro== video with suitable holes 2 for uttnchment to the machine casing. The spaced uport henrhiu o hosses 3 end 4 for the end of the shaft ore hrteurel with the cool plate one are surrounded by the oil reservoir 6, else integrel the endplote. The oil reservoir is of the terse capacity type having e not top '2 extending over the sonits width of the encl plate, as shown, so to allow access to the opening it in the curl piste for h'ispecting the machine, The top wall is also provirlerl with e, suitclole opening ll for insert= ing the yorn or wcste, the openinohelnu cloeecl 51) by the plug it. if on oil ring were usetl the opening would, of course, have to he suiilcientlv large to permit the insertion oi the ring.

in accordance with my invention l provide the hearing bosses 3 one. 4 with circumier-= entiol fienges ii and 12 extending toward each the spece hetwcen the flanges anti the top 7 and other along the shaft 5, thereby forming means for preventing oil from leaking between the hearing bosses and the shaft when the axis of the bearing assumes s. vertical position. The necessary height of the flanges 11 and 12, to prevent this leakage, is dependent upon the amount of oil in the reservoir and the amount of space that surrounds each flange. To prevent an excess of oil Krona being placed in the reservoir, on overflow hole 13 is provided in the lower part of or the reservoir which will determine the oil line when the reservoir is in normal position, as shown inFigures land 4. To prevent oil from flowing out of the hole 13 when the axis oi the bearing bosses is in o vertical position, the flange 11 is of such m thickness that the hole may enter the reservoir through the inner edge of the flange, us clegirly shownin Figure 4. An oil hole 14 is also provideo in the top of the reservoir for adding oil to the reservoir when necessary, this hole also entering the reservoir through the inner ed e oi the flange ll.

from the shove olescrihed structure it is clear-- is seen that hr correctly proportioningthe size of the reservoir, the height oithe flanges, and so the locotion of the overflow hole 13, it will be impossible for any oil to leek out of the reservoir in any position oi the machine. If, for example, the unis of the hearings should resume to vertical position, the oil will he confined to the space in the reservoir surrounding the flange ll or that surrounding the house 12, the capacity of each oi these spaces being slightly larger than the volume of oil in the reservoir. The position esseol by the hour of oil in one of the vertical positions, is clearly shown in Figure 5. If the mschlnc assumes o position wherein the top l of the reservoir isinterchenged with the bottom, then the oil in the reservoirv will be contained in below the short, lit the inn chine essinnes a, posltlon on either of its sides, the capacity of the oil reservoir on eoch stole oi the hearings is sunficlent to conteln the entire supply oi oil. Thus the level oi oil in the reservoir will not, inuny po= 10g; sltion or the zznochine, he such us to permit the oil to lost: out along the shaft or through the oil hole it.

The hear s 3 and 4 ore shown with the usual grooves 15 one it ior oollectlrng the oil con vereel to the shaft and passing through the hen:- ings in the nornrhl operation of the muchlnc, they being connected Toy drain-hock conduits it one is which enter the reservoir through the edges of the hoses. The end piste may also no iii 'lietvveen the top oi the reservoir and the "images of the looming loosses ie'gieeter than the volume of oil in the reservoir,

necessary amount of oil before Having fully described mg; iv. he?" soil cleave to Potent oi the United States l. coiiileinotiosi oi a ins, E, resesvoiitherefor meiiitoirr. oi fluid iubrioeot liens oolioeeiit the when the style is to o liorizontei position, and an Emilio-e oo"-= li'efi by said bearing lioiismo: one ext into the ieseivoii: alone soicl simeft i'oi" the lubricant fiom contacting the sheit assumes a. vertical position, the oi the reservoir and sold iioiige being provided with on. oil receiving opening end-om oveiflovv opening both of which. coiiiiieete with the reservoir through the inner end oi the fioiige and said overflow being below the shaft when the housing is in normal position.

2-. The combination with s sheiit some, oils lubricant reservoir thEFGi'Ql,t S-Ysld reservoir ieeiiio provided with on overflow'oiieiiing, ioi ing the level of the fluid iuloi icent below time beet ins when the short oxisi's in is horizontal post .tion and the reservoir isfin normal position, sold reservoir also being provided with on allliiilfitlf portion. extending into the reservoir eloog time silo-it for prevent ng the lubriceiit from eootsot ieev vos log with'tiie slioit when the shaft is in one of is vertieol positions and said overflow opening ooiomiioicstiiie with the reservoir through the inner eml of said annular portion.

3. The combination with a shaft bearing membe? provided on oil collecting groove, oi o iul i'icsiit reservoir adopted to maintain a body oi fizz-lei iioi'iosnt loe'neetlo and aojooent the beariiig when the shaft axis is in s horizontal positioofseiii reservoir also comprising a, lubricent containing space adopted to receive and reteiii the lubricant in a, position out of contoct ivitli the shaft" when the shaft is in one of its v vei'tiool oositioiis, and said bearing member being provided with e, drain book conduit connecting its oii collecting genome with the reservoir, the conduit entering the reservoir shove the body of Mimi cent any position of the shaft.

s. The combination with s siioit oi o, one-pieoe Y if provided with shaft openim s I to. interior lubricant COEI'ZE-li'li T siiii'ooiioling the shaft, said housing iioviiiz; extensions on its inner wells eel- 'eiit seitl slieit openings and embreciiig the s. it and on overflow passage in the housing" well one of the enemies extensions and com mimieetine with the lubricant space through the inner e icl oi" ssii-J, extension, said overflow passage also being below the siisit when the housing is in normal position.

5. 'lllie combination with a, shaft of e one-piece seei'izig housing provided, with shaft openings toeretiiz'ough soil on interior lubricant oonteiii ing; specs smvoiiiiding the shaft, soiii housing having on mommies extension on one oi its inner walls eiijeoent the shaft open and embracing tlie slisift, end on oil supply passage in the houstoo Well and the annular extension onol ooeetiiio with the lubricant space through the inner end of seioi extension, the external end of the oil supply Foe-mg at the top of theloouising when time bee-vine is in its no position.

' AND swims.

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